java random number between 0 and 100 code example

Example 1: java random numbers in specific range

import java.util.Random;

Random rand = new Random();
int random_integer = rand.nextInt(upperbound-lowerbound) + lowerbound;

Example 2: random number in range java

(int)(Math.random() * ((max - min) + 1)) + min
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Example 3: java random number between 100 and 999

int upperBound = 999;
int lowerBound = 100;
int number = lowerBound + (int)(Math.random() * ((upperBound - lowerBound) + 1));